export {}
// 数值
let age: number = 18
// 字符串
let str: string = 'gggg'
// 布尔
let isLoading: boolean = true
// null
let nullValue: null = null
// undefined
let undefinedValue: undefined = undefined
// symbol
let unikey: symbol = Symbol()
// bigInt
let bigIntValue: bigint = BigInt(234324)
